101
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Hawashin MD, Al-Juhaimi F, Ahmed IAM, Ghafoor K, Babiker EE. Physicochemical, microbiological and sensory evaluation of beef patties incorporated with destoned olive cake powder. Meat Sci 2016; 122:32-39. [DOI: 10.1016/j.meatsci.2016.07.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 07/19/2016] [Accepted: 07/21/2016] [Indexed: 10/21/2022]
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102
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Caporaso N, Genovese A, Burke R, Barry-Ryan C, Sacchi R. Physical and oxidative stability of functional olive oil-in-water emulsions formulated using olive mill wastewater biophenols and whey proteins. Food Funct 2016; 7:227-38. [PMID: 26692051 DOI: 10.1039/c5fo01269d] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present paper reports on the use of phenolic extracts from olive mill wastewater (OMW) in model olive oil-in-water (O/W) emulsions to study their effect on their physical and chemical stability. Spray-dried OMW polyphenols were added to a model 20% olive O/W emulsion stabilized with whey protein isolate (WPI) and xanthan gum, in phosphate buffer solution at pH 7. The emulsions were characterised under accelerated storage conditions (40 °C) up to 30 days. Physical stability was evaluated by analysing the creaming rate, mean particle size distribution and mean droplet size, viscosity and rheological properties, while chemical stability was assessed through the measurement of primary and secondary oxidation products. The rheological behaviour and creaming stability of the emulsions were dramatically improved by using xanthan gum, whereas the concentration of WPI and the addition of encapsulated OMW phenolics did not result in a significant improvement of physical stability. The formation of oxidation products was higher when higher concentrations of encapsulated polyphenols were used, indicating a possible binding with the WPI added in the system as a natural emulsifier. This paper might help in solving the issue of using the olive mill wastewater from olive processing in formulating functional food products with high antioxidant activity and improved health properties.
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Affiliation(s)
- Nicola Caporaso
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, NA, Italy.
| | - Alessandro Genovese
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, NA, Italy.
| | - Róisín Burke
- School of Culinary Arts and Food Technology, Dublin Institute of Technology, Dublin, Ireland
| | - Catherine Barry-Ryan
- School of Food Science and Environmental Health, Dublin Institute of Technology, Dublin, Ireland
| | - Raffaele Sacchi
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, NA, Italy.
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103
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Dammak I, Khoufi S, Sayadi S. A performance comparison of olive oil mill wastewater enzymatic treatments. FOOD AND BIOPRODUCTS PROCESSING 2016. [DOI: 10.1016/j.fbp.2016.06.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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104
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Kayani WK, Dilshad E, Ahmed T, Ismail H, Mirza B. Evaluation of Ajuga bracteosa for antioxidant, anti-inflammatory, analgesic, antidepressant and anticoagulant activities. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 16:375. [PMID: 27677846 PMCID: PMC5039935 DOI: 10.1186/s12906-016-1363-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 09/15/2016] [Indexed: 12/26/2022]
Abstract
Background Ajuga bracteosa has been extensively used traditionally for the treatment of a variety of diseases. The aim of the study was to scientifically validate the wide-scale exploitation of A. bracteosa in folk medicine various in vitro and in vivo assays. Moreover, these activities were related to the intrinsic biologically active phytoecdysteroids of A. bracteosa. Methods Aerial and root parts of A. bracteosa were first extracted separately with chloroform (AbCA and AbCR) and the residue was again extracted with methanol (AbMA and AbMR). Total flavonoid and phenolic contents were assayed as quercetin (QE) and gallic acid equivalents (GAE), respectively. These extracts were analyzed for in vitro antioxidant assessment including DPPH and H2O2 (% inhibition of free radicals), and reducing power and phosphomolybdenum methods (ascorbic acid equivalents AAE mg/g DW). Further, these extracts were assayed in vivo in separate groups of Sprague–Dawley rats for carrageenan induced rat paw edema inhibition, hotplate antinociception, forced swim antidepression and anticoagulation. Dose of each crude extract and standard drug given to rats was 200 mg/Kg- and 10 mg/10 mL/Kg body weight respectively. Plant extracts and standard drugs were administered orally, 60 min prior to the conduction of assays. Moreover, biologically active phytoecdysteroids were screened in A. bracteosa with the help of RP-HPLC. Results AbMA represented highest values of flavonoids (QE 1.98 % DW) and phenolic contents (GAE 5.94 % DW), significantly scavenged DPPH radicles (IC50 36.9) and reduced ferric ions with 718.4 mg ascorbic acid equivalent/g (AAE). Highest total antioxidant capacity was expressed by AbMR (927 mg AAE) with an IC50 value 19.1 μg/mL. The extracts which were found potent anti-oxidants, were also good at in vivo activities. AbMA significantly reduced edema in all the three hours of treatment (67.9, 70.3 and 74.3 %). AbMA also showed maximum nociceptor suppression in analgesic assay by delaying the time to start licking of paws in rats (57.7 ± 4.9 s). In addition, maximum anti-coagulation was also exhibited by AbMA (89.3 s), while all extracts were found strong antidepressants (≤15.66 s immobility time). Screening of biologically active phytoecdysteroids revealed the presence of 20-hydroxyecdysone (20-HE), makisterone (MKA), cyasterone (CYP) and ajujalactone (AJL). Total phytoecdysteroid content found in A. bracteosa was 1232.5 μg/g DW and 20-HE was most abundant (1232.5 μg/g DW) as compared to other phytoecdysteroids. Conclusion Based on the tested in vitro and in vivo activities, AbMA was found to be a promising bioactive extract. These activities can be attributed to the intrinsic polyphenols and phytoecdysteroids contents of A. bracteosa.
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105
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Leite P, Salgado JM, Venâncio A, Domínguez JM, Belo I. Ultrasounds pretreatment of olive pomace to improve xylanase and cellulase production by solid-state fermentation. BIORESOURCE TECHNOLOGY 2016; 214:737-746. [PMID: 27209456 DOI: 10.1016/j.biortech.2016.05.028] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/09/2016] [Accepted: 05/10/2016] [Indexed: 06/05/2023]
Abstract
Olive mills generate a large amount of waste that can be revaluated. This work aim to improve the production lignocellulolytic enzymes by solid-state fermentation using ultrasounds pretreated olive mill wastes. The composition of olive mill wastes (crude and exhausted olive pomace) was compared and several physicochemical characteristics were significantly different. The use of both wastes in SSF was evaluated and a screening of fungi for xylanase and cellulase production was carried out. After screening, the use of exhausted olive pomace and Aspergillus niger led to the highest enzyme activities, so that they were used in the study of ultrasounds pre-treatment. The results showed that the sonication led to a 3-fold increase of xylanase activity and a decrease of cellulase activity. Moreover, the liquid fraction obtained from ultrasounds treatment was used to adjust the moisture of solid and a positive effect on xylanase (3.6-fold increase) and cellulase (1.2-fold increase) production was obtained.
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Affiliation(s)
- Paulina Leite
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - José Manuel Salgado
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - Armando Venâncio
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - José Manuel Domínguez
- Department of Chemical Engineering, Sciences Faculty, University of Vigo (Campus Ourense), As Lagoas s/n, 32004 Ourense, Spain
| | - Isabel Belo
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
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106
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Savarese M, De Marco E, Falco S, D'Antuoni I, Sacchi R. Biophenol extracts from olive oil mill wastewaters by membrane separation and adsorption resin. Int J Food Sci Technol 2016. [DOI: 10.1111/ijfs.13219] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Maria Savarese
- Olio Dante Spa Divisione CRIOL; Centro Ricerche per l'Industria Olearia; Zona Industriale; 82016 Montesarchio Benevento Italy
| | - Elena De Marco
- Olio Dante Spa Divisione CRIOL; Centro Ricerche per l'Industria Olearia; Zona Industriale; 82016 Montesarchio Benevento Italy
| | - Salvatore Falco
- Olio Dante Spa Divisione CRIOL; Centro Ricerche per l'Industria Olearia; Zona Industriale; 82016 Montesarchio Benevento Italy
| | - Isabella D'Antuoni
- Olio Dante Spa Divisione CRIOL; Centro Ricerche per l'Industria Olearia; Zona Industriale; 82016 Montesarchio Benevento Italy
| | - Raffaele Sacchi
- Dipartimento di Agraria; Università degli Studi di Napoli Federico II; via Università 100 80055 Portici Naples Italy
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107
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Sedej I, Milczarek R, Wang SC, Sheng R, de Jesús Avena-Bustillos R, Dao L, Takeoka G. Spray drying of a phenolic-rich membrane filtration fraction of olive mill wastewater: optimisation and dried product quality. Int J Food Sci Technol 2016. [DOI: 10.1111/ijfs.13163] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Ivana Sedej
- Olive Center; University of California, Davis; 392 Old Davis Rd. Davis CA 95616 USA
| | - Rebecca Milczarek
- Healthy Processed Foods Research Unit; United States Department of Agriculture - Agricultural Research Service; 800 Buchanan Street Albany CA 94710 USA
| | - Selina C. Wang
- Olive Center; University of California, Davis; 392 Old Davis Rd. Davis CA 95616 USA
| | - Runqi Sheng
- Olive Center; University of California, Davis; 392 Old Davis Rd. Davis CA 95616 USA
| | - Roberto de Jesús Avena-Bustillos
- Healthy Processed Foods Research Unit; United States Department of Agriculture - Agricultural Research Service; 800 Buchanan Street Albany CA 94710 USA
| | - Lan Dao
- Healthy Processed Foods Research Unit; United States Department of Agriculture - Agricultural Research Service; 800 Buchanan Street Albany CA 94710 USA
| | - Gary Takeoka
- Healthy Processed Foods Research Unit; United States Department of Agriculture - Agricultural Research Service; 800 Buchanan Street Albany CA 94710 USA
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108
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Özcan MM, Matthäus B. A review: benefit and bioactive properties of olive (Olea europaea L.) leaves. Eur Food Res Technol 2016. [DOI: 10.1007/s00217-016-2726-9] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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109
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Microencapsulation by Membrane Emulsification of Biophenols Recovered from Olive Mill Wastewaters. MEMBRANES 2016; 6:membranes6020025. [PMID: 27171115 PMCID: PMC4931520 DOI: 10.3390/membranes6020025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 05/03/2016] [Accepted: 05/04/2016] [Indexed: 11/17/2022]
Abstract
Biophenols are highly prized for their free radical scavenging and antioxidant activities. Olive mill wastewaters (OMWWs) are rich in biophenols. For this reason, there is a growing interest in the recovery and valorization of these compounds. Applications for the encapsulation have increased in the food industry as well as the pharmaceutical and cosmetic fields, among others. Advancements in micro-fabrication methods are needed to design new functional particles with target properties in terms of size, size distribution, and functional activity. This paper describes the use of the membrane emulsification method for the fine-tuning of microparticle production with biofunctional activity. In particular, in this pioneering work, membrane emulsification has been used as an advanced method for biophenols encapsulation. Catechol has been used as a biophenol model, while a biophenols mixture recovered from OMWWs were used as a real matrix. Water-in-oil emulsions with droplet sizes approximately 2.3 times the membrane pore diameter, a distribution span of 0.33, and high encapsulation efficiency (98% ± 1% and 92% ± 3%, for catechol and biophenols, respectively) were produced. The release of biophenols was also investigated.
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110
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Aggoun M, Arhab R, Cornu A, Portelli J, Barkat M, Graulet B. Olive mill wastewater microconstituents composition according to olive variety and extraction process. Food Chem 2016; 209:72-80. [PMID: 27173536 DOI: 10.1016/j.foodchem.2016.04.034] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 04/07/2016] [Accepted: 04/12/2016] [Indexed: 11/15/2022]
Abstract
Olive oil production yields a considerable amount of wastewater, a powerful pollutant that is currently discarded but could be considered as a potential source of valuable natural products due to its content in phenolic compounds and other natural antioxidants. The aim of this work was to explore the variability in olive mill wastewater composition from Algerian olive oil mills considering extraction processes (traditional discontinuous press vs 3-phases centrifugal system) and olive varieties (Azerraj, Sigoise, Chemlal). Whereas pH, dry or organic matter content didn't vary, there was a significant difference in ash content according to extraction process and olive variety. Carotenoid content was 2.2-fold higher with 3-phases than with press systems whereas tocopherol content was not significantly different. Among the phenolic compounds quantified, tyrosol was usually the most abundant whereas oleuropein concentrations were highly variable. Differences in phenolic compound concentrations were more pronounced between olive varieties than between processes.
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Affiliation(s)
- Moufida Aggoun
- INRA, UMR1213 Herbivores, F-63122 St-Genès-Champanelle, France; Clermont Université, VetAgro Sup, UMR Herbivores, BP 10448, F-63000 Clermont-Ferrand, France
| | - Rabah Arhab
- Département des Sciences de la Nature et de la Vie, Université Larbi Ben M'Hidi, Oum El Bouaghi, Algeria
| | - Agnès Cornu
- INRA, UMR1213 Herbivores, F-63122 St-Genès-Champanelle, France; Clermont Université, VetAgro Sup, UMR Herbivores, BP 10448, F-63000 Clermont-Ferrand, France
| | - Josiane Portelli
- INRA, UMR1213 Herbivores, F-63122 St-Genès-Champanelle, France; Clermont Université, VetAgro Sup, UMR Herbivores, BP 10448, F-63000 Clermont-Ferrand, France
| | - Malika Barkat
- Institut de la Nutrition, de l'Alimentation et des Technologies Agro-Alimentaires, INATAA, Université Frères Mentouri-Constantine, route de Ain El Bey, 25000 Constantine, Algeria
| | - Benoît Graulet
- INRA, UMR1213 Herbivores, F-63122 St-Genès-Champanelle, France; Clermont Université, VetAgro Sup, UMR Herbivores, BP 10448, F-63000 Clermont-Ferrand, France.
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111
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Fasolato L, Carraro L, Facco P, Cardazzo B, Balzan S, Taticchi A, Andreani NA, Montemurro F, Martino ME, Di Lecce G, Toschi TG, Novelli E. Agricultural by-products with bioactive effects: A multivariate approach to evaluate microbial and physicochemical changes in a fresh pork sausage enriched with phenolic compounds from olive vegetation water. Int J Food Microbiol 2016; 228:34-43. [PMID: 27088870 DOI: 10.1016/j.ijfoodmicro.2016.04.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 03/03/2016] [Accepted: 04/01/2016] [Indexed: 11/20/2022]
Abstract
The use of phenolic compounds derived from agricultural by-products could be considered as an eco-friendly strategy for food preservation. In this study a purified phenol extract from olive vegetation water (PEOVW) was explored as a potential bioactive ingredient for meat products using Italian fresh sausage as food model. The research was developed in two steps: first, an in vitro delineation of the extract antimicrobial activities was performed, then, the PEOVW was tested in the food model to investigate the possible application in food manufacturing. The in vitro tests showed that PEOVW clearly inhibits the growth of food-borne pathogens such as Listeria monocytogenes and Staphylococcus aureus. The major part of Gram-positive strains was inhibited at the low concentrations (0.375-3mg/mL). In the production of raw sausages, two concentrates of PEOVW (L1: 0.075% and L2: 0.15%) were used taking into account both organoleptic traits and the bactericidal effects. A multivariate statistical approach allowed the definition of the microbial and physicochemical changes of sausages during the shelf life (14days). In general, the inclusion of the L2 concentration reduced the growth of several microbial targets, especially Staphylococcus spp. and LABs (2log10CFU/g reduction), while the increasing the growth of yeasts was observed. The reduction of microbial growth could be involved in the reduced lipolysis of raw sausages supplemented with PEOVW as highlighted by the lower amount of diacylglycerols. Moisture and aw had a significant effect on the variability of microbiological features, while food matrix (the sausages' environment) can mask the effects of PEOVW on other targets (e.g. Pseudomonas). Moreover, the molecular identification of the main representative taxa collected during the experimentation allowed the evaluation of the effects of phenols on the selection of bacteria. Genetic data suggested a possible strain selection based on storage time and the addition of phenol compounds especially on LABs and Staphylococcus spp. The modulation effects on lipolysis and the reduction of several microbial targets in a naturally contaminated product indicates that PEOVW may be useful as an ingredient in fresh sausages for improving food safety and quality.
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Affiliation(s)
- Luca Fasolato
- Department of Comparative Biomedicine and Food Science (BCA), University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, PD, Italy.
| | - Lisa Carraro
- Department of Comparative Biomedicine and Food Science (BCA), University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, PD, Italy.
| | - Pierantonio Facco
- CAPE-Lab - Computer-Aided Process Engineering Laboratory, Department of Industrial Engineering, University of Padova, via Marzolo, 9, 35131 Padova, PD, Italy.
| | - Barbara Cardazzo
- Department of Comparative Biomedicine and Food Science (BCA), University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, PD, Italy.
| | - Stefania Balzan
- Department of Comparative Biomedicine and Food Science (BCA), University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, PD, Italy.
| | - Agnese Taticchi
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Via San Costanzo s.n.c., 06126 Perugia, Italy.
| | - Nadia Andrea Andreani
- Department of Comparative Biomedicine and Food Science (BCA), University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, PD, Italy.
| | - Filomena Montemurro
- Department of Comparative Biomedicine and Food Science (BCA), University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, PD, Italy.
| | - Maria Elena Martino
- Department of Comparative Biomedicine and Food Science (BCA), University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, PD, Italy; Institut de Génomique Fonctionnelle de Lyon (IGFL), Ecole Normale Supérieure de Lyon, CNRS UMR 5242, Université Claude Bernard Lyon 1, France.
| | - Giuseppe Di Lecce
- Department of Agricultural and Food Sciences, Alma Mater Studiorum-University of Bologna, piazza Goidanich 60, I-47023, Cesena, Italy.
| | - Tullia Gallina Toschi
- Department of Agricultural and Food Sciences, Alma Mater Studiorum-University of Bologna, Viale Fanin 40 (4o. piano, Ala Ovest), 40127 Bologna, Italy.
| | - Enrico Novelli
- Department of Comparative Biomedicine and Food Science (BCA), University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, PD, Italy.
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112
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Gebreyohannes AY, Mazzei R, Giorno L. Trends and current practices of olive mill wastewater treatment: Application of integrated membrane process and its future perspective. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.02.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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113
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Sedej I, Milczarek R, Wang SC, Sheng R, de Jesús Avena-Bustillos R, Dao L, Takeoka G. Membrane-Filtered Olive Mill Wastewater: Quality Assessment of the Dried Phenolic-Rich Fraction. J Food Sci 2016; 81:E889-96. [DOI: 10.1111/1750-3841.13267] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 02/12/2016] [Indexed: 12/24/2022]
Affiliation(s)
- Ivana Sedej
- Univ. of California, Davis; Olive Center; 392 Old Davis Rd Davis CA 95616 U.S.A
| | - Rebecca Milczarek
- United States Dept. of Agriculture - Agricultural Research Service; Healthy Processed Foods Research Unit; 800 Buchanan Street Albany CA 94710 U.S.A
| | - Selina C. Wang
- Univ. of California, Davis; Olive Center; 392 Old Davis Rd Davis CA 95616 U.S.A
| | - Runqi Sheng
- Univ. of California, Davis; Olive Center; 392 Old Davis Rd Davis CA 95616 U.S.A
| | - Roberto de Jesús Avena-Bustillos
- United States Dept. of Agriculture - Agricultural Research Service; Healthy Processed Foods Research Unit; 800 Buchanan Street Albany CA 94710 U.S.A
| | - Lan Dao
- United States Dept. of Agriculture - Agricultural Research Service; Healthy Processed Foods Research Unit; 800 Buchanan Street Albany CA 94710 U.S.A
| | - Gary Takeoka
- United States Dept. of Agriculture - Agricultural Research Service; Healthy Processed Foods Research Unit; 800 Buchanan Street Albany CA 94710 U.S.A
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114
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Larriba M, Omar S, Navarro P, García J, Rodríguez F, Gonzalez-Miquel M. Recovery of tyrosol from aqueous streams using hydrophobic ionic liquids: a first step towards developing sustainable processes for olive mill wastewater (OMW) management. RSC Adv 2016. [DOI: 10.1039/c5ra26510j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hydrophobic ILs have been proposed as VOCs replacements for tyrosol recovery from aqueous solutions, revealing promising extraction efficiency and regeneration capacity. This will help developing sustainable processes for olive mill waste management.
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Affiliation(s)
- Marcos Larriba
- Department of Chemical Engineering
- Complutense University of Madrid
- E-28040 Madrid
- Spain
- School of Chemical Engineering and Analytical Science
| | - Salama Omar
- Sección de Ingeniería Química
- Universidad Autónoma de Madrid
- Madrid
- Spain
| | - Pablo Navarro
- Department of Chemical Engineering
- Complutense University of Madrid
- E-28040 Madrid
- Spain
| | - Julián García
- Department of Chemical Engineering
- Complutense University of Madrid
- E-28040 Madrid
- Spain
| | - Francisco Rodríguez
- Department of Chemical Engineering
- Complutense University of Madrid
- E-28040 Madrid
- Spain
| | - Maria Gonzalez-Miquel
- School of Chemical Engineering and Analytical Science
- The University of Manchester
- Manchester
- UK
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115
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Moya Ramírez I, Tsaousi K, Rudden M, Marchant R, Jurado Alameda E, García Román M, Banat IM. Rhamnolipid and surfactin production from olive oil mill waste as sole carbon source. BIORESOURCE TECHNOLOGY 2015; 198:231-236. [PMID: 26398666 DOI: 10.1016/j.biortech.2015.09.012] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 09/01/2015] [Accepted: 09/02/2015] [Indexed: 06/05/2023]
Abstract
Olive mill waste (OMW) creates a major environmental problem due to the difficulty of further waste processing. In this work we present an approach to give OMW added value by using it for the production of biosurfactants. Two bacterial species, Pseudomonas aeruginosa and Bacillus subtilis, were grown with OMW as the sole carbon source. Glycerol and waste frying oil were used as comparative carbon sources. B. subtilis produced surfactin (a lipopeptide) at a maximum concentration of 3.12 mg/L with 2% w/v of OMW in the medium, dropping to 0.57 mg/L with 10% w/v of OMW. In contrast, P. aeruginosa produced 8.78 mg/L of rhamnolipid with 2% w/v OMW increasing to 191.46 mg/L with 10% w/v OMW. The use of solvent-extracted OMW reduced the biosurfactant production by 70.8% and 88.3% for B. subtilis and P. aeruginosa respectively. These results confirm that OMW is a potential substrate for biosurfactant production.
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Affiliation(s)
- Ignacio Moya Ramírez
- Chemical Engineering Department, Faculty of Sciences, University of Granada, Spain
| | - Konstantina Tsaousi
- School of Biomedical Sciences, University of Ulster, Coleraine BT52 1SA, N. Ireland, UK
| | - Michelle Rudden
- School of Biomedical Sciences, University of Ulster, Coleraine BT52 1SA, N. Ireland, UK
| | - Roger Marchant
- School of Biomedical Sciences, University of Ulster, Coleraine BT52 1SA, N. Ireland, UK
| | | | - Miguel García Román
- Chemical Engineering Department, Faculty of Sciences, University of Granada, Spain
| | - Ibrahim M Banat
- School of Biomedical Sciences, University of Ulster, Coleraine BT52 1SA, N. Ireland, UK.
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116
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Olive Mill Waste Extracts: Polyphenols Content, Antioxidant, and Antimicrobial Activities. Adv Pharmacol Sci 2015; 2015:714138. [PMID: 26693221 PMCID: PMC4676996 DOI: 10.1155/2015/714138] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 11/09/2015] [Indexed: 12/02/2022] Open
Abstract
Natural polyphenols extracts have been usually associated with great bioactive properties. In this work, we investigated in vitro antioxidant and antimicrobial potential of the phenolic olive mill wastewater extracts (OWWE) and the olive cake extracts (OCE). Using the Folin Ciocalteux method, OWWE contained higher total phenol content compared to OCE (8.90 ± 0.728 g/L versus 0.95 ± 0.017 mg/g). The phenolic compounds identification was carried out with a performance liquid chromatograph coupled to tandem mass spectrometry equipment (HPLC-ESI-MS). With this method, a list of polyphenols from OWWE and OCE was obtained. The antioxidant activity was measured in aqueous (DPPH) and emulsion (BCBT) systems. Using the DPPH assay, the results show that OWWE was more active than OCE and interestingly the extracts originating from mountainous areas were more active than those produced from plain areas (EC50 = 12.1 ± 5.6 μg/mL; EC50 = 157.7 ± 34.9 μg/mL, resp.). However, when the antioxidant activity was reversed in the BCBT, OCE produced from plain area was more potent than mountainous OCE. Testing by the gel diffusion assay, all the tested extracts have showed significant spectrum antibacterial activity against Staphylococcus aureus, whereas the biophenols extracts showed more limited activity against Escherichia coli and Streptococcus faecalis.
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Letnik I, Avrahami R, Rokem JS, Greiner A, Zussman E, Greenblatt C. Living Composites of Electrospun Yeast Cells for Bioremediation and Ethanol Production. Biomacromolecules 2015; 16:3322-8. [DOI: 10.1021/acs.biomac.5b00970] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ilya Letnik
- Department
of Microbiology and Molecular Genetics, IMRIC Hebrew University − Hadassah Medical School Ein-Karem, Jerusalem 9112102, Israel
| | - Ron Avrahami
- The
Faculty of Mechanical Engineering, Technion Institute of Technology, Haifa 32000 Israel
| | - J. Stefan Rokem
- Department
of Microbiology and Molecular Genetics, IMRIC Hebrew University − Hadassah Medical School Ein-Karem, Jerusalem 9112102, Israel
| | - Andreas Greiner
- Macromolecular
Chemistry II and Bayreuth Center for Colloids and Interfaces, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
| | - Eyal Zussman
- The
Faculty of Mechanical Engineering, Technion Institute of Technology, Haifa 32000 Israel
| | - Charles Greenblatt
- Department
of Microbiology and Molecular Genetics, IMRIC Hebrew University − Hadassah Medical School Ein-Karem, Jerusalem 9112102, Israel
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Castro-Muñoz R, Yáñez-Fernández J. Valorization of Nixtamalization wastewaters (Nejayote) by integrated membrane process. FOOD AND BIOPRODUCTS PROCESSING 2015. [DOI: 10.1016/j.fbp.2015.03.006] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Pontoni L, d'Antonio G, Esposito G, Fabbricino M, Frunzo L, Pirozzi F. Thermal pretreatment of olive mill wastewater for efficient methane production: control of aromatic substances degradation by monitoring cyclohexane carboxylic acid. ENVIRONMENTAL TECHNOLOGY 2015; 36:1785-1794. [PMID: 25624137 DOI: 10.1080/09593330.2015.1012179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Anaerobic digestion is investigated as a sustainable depurative strategy of olive oil mill wastewater (OOMW). The effect of thermal pretreatment on the anaerobic biodegradation of aromatic compounds present in (OMWW) was investigated. The anaerobic degradation of phenolic compounds, well known to be the main concern related to this kind of effluents, was monitored in batch anaerobic tests at a laboratory scale on samples pretreated at mild (80±1 °C), intermediate (90±1 °C) and high temperature (120±1 °C). The obtained results showed an increase of 34% in specific methane production (SMP) for OMWW treated at the lowest temperature and a decrease of 18% for treatment at the highest temperature. These results were related to the different decomposition pathways of the lignocellulosic compounds obtained in the tested conditions. The decomposition pathway was determined by measuring the concentrations of volatile organic acids, phenols, and chemical oxygen demand (COD) versus time. Cyclohexane carboxylic acid (CHCA) production was identified in all the tests with a maximum concentration of around 200 µmol L(-1) in accordance with the phenols degradation, suggesting that anaerobic digestion of aromatic compounds follows the benzoyl-CoA pathway. Accurate monitoring of this compound was proposed as the key element to control the process evolution. The total phenols (TP) and total COD removals were, with SMP, the highest (TP 62.7%-COD 63.2%) at 80 °C and lowest (TP 44.9%-COD 32.2%) at 120 °C. In all cases, thermal pretreatment was able to enhance the TP removal ability (up to 42% increase).
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Affiliation(s)
- Ludovico Pontoni
- a Department of Civil, Architectural and Environmental Engineering , University of Naples Federico II , Via Claudio, 21, Naples 80125 , Italy
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Jerman Klen T, Golc Wondra A, Vrhovšek U, Sivilotti P, Vodopivec BM. Olive Fruit Phenols Transfer, Transformation, and Partition Trail during Laboratory-Scale Olive Oil Processing. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:4570-9. [PMID: 25891748 DOI: 10.1021/jf506353z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This work is the most comprehensive study on the quantitative behavior of olive fruit phenols during olive oil processing, providing insight into their transfer, transformation, and partition trail. In total, 69 phenols were quantified in 6 olive matrices from a three-phase extraction line employing ultra high pressure liquid chromatography-diode array detection analysis. Crushing had a larger effect than malaxation in terms of phenolic degradation and transformation, resulting in several new evolutions of respective derivatives. The peel and pulp together confined 95% of total fruit phenols, while stone only 5%. However, only 0.53% of all ended-up in olive oil, nearly 6% in wastewater, and 48% in pomace. Secoiridoids were the predominant class in all matrices, though represented by different individuals. Their partition behavior was rather similar to other phenolic classes, where with few minor exceptions only aglycones were partitioned to the oil, while other glycosides were lost with the wastes.
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Affiliation(s)
- Tina Jerman Klen
- †Wine Research Centre, University of Nova Gorica, Glavni trg 8, 5271 Vipava, Slovenia
| | - Alenka Golc Wondra
- ‡Centre for Validation Technologies and Analytics, National Institute of Chemistry, Hajdrichova 19, Ljubljana 1000, Slovenia
| | - Urška Vrhovšek
- §Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach (FEM), Via E. Mach, 1 38010 S. Michele all'Adige (TN), Italy
| | - Paolo Sivilotti
- †Wine Research Centre, University of Nova Gorica, Glavni trg 8, 5271 Vipava, Slovenia
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Hashmi MA, Khan A, Hanif M, Farooq U, Perveen S. Traditional Uses, Phytochemistry, and Pharmacology of Olea europaea (Olive). EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2015; 2015:541591. [PMID: 25802541 PMCID: PMC4352757 DOI: 10.1155/2015/541591] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 01/18/2015] [Accepted: 01/25/2015] [Indexed: 01/18/2023]
Abstract
Aim of the Review. To grasp the fragmented information available on the botany, traditional uses, phytochemistry, pharmacology, and toxicology of Olea europaea to explore its therapeutic potential and future research opportunities. Material and Methods. All the available information on O. europaea was collected via electronic search (using Pubmed, Scirus, Google Scholar, and Web of Science) and a library search. Results. Ethnomedical uses of O. europaea are recorded throughout the world where it has been used to treat various ailments. Phytochemical research had led to the isolation of flavonoids, secoiridoids, iridoids, flavanones, biophenols, triterpenes, benzoic acid derivatives, isochromans, and other classes of secondary metabolites from O. europaea. The plant materials and isolated components have shown a wide spectrum of in vitro and in vivo pharmacological activities like antidiabetic, anticonvulsant, antioxidant, anti-inflammatory, immunomodulatory, analgesic, antimicrobial, antiviral, antihypertensive, anticancer, antihyperglycemic, antinociceptive, gastroprotective, and wound healing activities. Conclusions. O. europaea emerged as a good source of traditional medicine for the treatment of various ailments. The outcomes of phytochemical and pharmacological studies reported in this review will further expand its existing therapeutic potential and provide a convincing support to its future clinical use in modern medicine.
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Affiliation(s)
- Muhammad Ali Hashmi
- Department of Chemistry, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan
| | - Afsar Khan
- Department of Chemistry, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan
| | - Muhammad Hanif
- Department of Chemistry, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan
| | - Umar Farooq
- Department of Chemistry, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan
| | - Shagufta Perveen
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
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Masmoudi M, Rahal C, Abdelhedi R, Khitouni M, Bouaziz M. Inhibitive action of stored olive mill wastewater (OMW) on the corrosion of copper in a NaCl solution. RSC Adv 2015. [DOI: 10.1039/c5ra17744h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Stored OMWs are greatly enriched in phenolic compounds, mainly HT and tyrosol. But, after 4 years the concentrations of these compounds decrease. We find that OMW acts as a mixed-type corrosion inhibitor.
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Affiliation(s)
- Mohamed Masmoudi
- Laboratory of Electrochemistry and Environment (LEE)
- Sfax National Engineering School (ENIS)
- University of Sfax
- BPW 3038 Sfax
- Tunisia
| | - Chahla Rahal
- Laboratory of Electrochemistry and Environment (LEE)
- Sfax National Engineering School (ENIS)
- University of Sfax
- BPW 3038 Sfax
- Tunisia
| | - Ridha Abdelhedi
- Laboratory of Electrochemistry and Environment (LEE)
- Sfax National Engineering School (ENIS)
- University of Sfax
- BPW 3038 Sfax
- Tunisia
| | - Mohamed Khitouni
- Laboratory of Inorganic Chemistry (Ur-11-Es-73)
- Faculty of Sciences of Sfax
- University of Sfax
- Tunisia
| | - Mohamed Bouaziz
- Laboratory of Electrochemistry and Environment (LEE)
- Sfax National Engineering School (ENIS)
- University of Sfax
- BPW 3038 Sfax
- Tunisia
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Novel strategy for the revalorization of olive (Olea europaea) residues based on the extraction of bioactive peptides. Food Chem 2015; 167:272-80. [DOI: 10.1016/j.foodchem.2014.06.090] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 04/30/2014] [Accepted: 06/23/2014] [Indexed: 12/24/2022]
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D'Antuono I, Kontogianni VG, Kotsiou K, Linsalata V, Logrieco AF, Tasioula-Margari M, Cardinali A. Polyphenolic characterization of olive mill wastewaters, coming from Italian and Greek olive cultivars, after membrane technology. Food Res Int 2014. [DOI: 10.1016/j.foodres.2014.09.033] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Di Lecce G, Cassano A, Bendini A, Conidi C, Giorno L, Toschi TG. Characterization of olive mill wastewater fractions treatment by integrated membrane process. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2014; 94:2935-2942. [PMID: 24591090 DOI: 10.1002/jsfa.6637] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 02/04/2014] [Accepted: 02/26/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Up to now, the management of olive mill wastewaters, a three-phase mill by-product, remains an unsolved problem, in particular for those regions where huge quantities of vegetable water are produced. Olive mill wastewaters were therefore treated to evaluate the characteristics of permeate and retentate fractions produced by an integrated membrane system working at two different volume concentration factors. RESULTS The effect of two membrane-based filtration steps (microfiltration and nanofiltration) on the content of chemical oxygen demand, dry matter, sensory quality, phenolic compounds and antioxidant activity of permeate and retentate samples was evaluated. Furthermore, the effect of two different volume concentration factors (VCF), in the nanofiltration step, were investigated. At high VCF values, the total phenolic content in the retentate fraction was found to be 3.7-fold higher than the starting one, while the reduction of chemical oxygen demand in the permeate fraction was greater than 97% also at lower VCF values. CONCLUSION Each filtration step has provided useful information concerning the utility and appropriateness of the processes chosen, suggesting a sustainable hypothesis of 'normal industrial practice' that can be included in current processes of oil extraction, in order to purify water and recover phenolic compounds with high added value.
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Affiliation(s)
- Giuseppe Di Lecce
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, I-47521, Cesena (FC), Italy
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Sousa A, Malheiro R, Casal S, Bento A, Pereira JA. Antioxidant activity and phenolic composition of Cv. Cobrançosa olives affected through the maturation process. J Funct Foods 2014. [DOI: 10.1016/j.jff.2014.08.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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128
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Abstract
The present narrative review compares evidence from experimental, epidemiological and clinical studies of the health benefits of rapeseed oil (RO) (known as canola oil) and olive oil (OO) in order to assess whether rapeseed oil is suitable as a sustainable alternative to OO as part of a Mediterranean-style diet in countries where olive trees do not grow. From epidemiological studies, the evidence for cardiovascular protection afforded by extra-virgin OO is 'convincing', and for cancers 'limited-suggestive', especially oestrogen receptor-negative breast cancer, but more studies are required in relation to cognitive impairment. Evidence for RO is limited to short-term studies on the biomarkers of risk factors for CVD. Any benefits of RO are likely to be due to α-linolenic acid; however, it is prone to oxidation during frying. We conclude that due to a lack of evidence from observational or intervention studies indicating that RO has comparable health benefits to extra-virgin OO, RO cannot currently be recommended as a suitable substitute for extra-virgin OO as part of a Mediterranean-style diet.
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Troise AD, Fiore A, Colantuono A, Kokkinidou S, Peterson DG, Fogliano V. Effect of olive mill wastewater phenol compounds on reactive carbonyl species and Maillard reaction end-products in ultrahigh-temperature-treated milk. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:10092-100. [PMID: 25280240 DOI: 10.1021/jf503329d] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Thermal processing and Maillard reaction (MR) affect the nutritional and sensorial qualities of milk. In this paper an olive mill wastewater phenolic powder (OMW) was tested as a functional ingredient for inhibiting MR development in ultrahigh-temperature (UHT)-treated milk. OMW was added to milk at 0.1 and 0.05% w/v before UHT treatment, and the concentration of MR products was monitored to verify the effect of OMW phenols in controlling the MR. Results revealed that OMW is able to trap the reactive carbonyl species such as hydroxycarbonyls and dicarbonyls, which in turn led to the increase of Maillard-derived off-flavor development. The effect of OMW on the formation of Amadori products and N-ε-(carboxymethyl)-lysine (CML) showed that oxidative cleavage, C2-C6 cyclization, and the consequent reactive carbonyl species formation were also inhibited by OMW. Data indicated that OMW is a functional ingredient able to control the MR and to improve the nutritional and sensorial attributes of milk.
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Affiliation(s)
- Antonio Dario Troise
- Food Quality and Design Group, Wageningen University and Research Centre , P.O. Box 8129, 6700 EV Wageningen, The Netherlands
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Daâssi D, Lozano-Sánchez J, Borrás-Linares I, Belbahri L, Woodward S, Zouari-Mechichi H, Mechichi T, Nasri M, Segura-Carretero A. Olive oil mill wastewaters: phenolic content characterization during degradation by Coriolopsis gallica. CHEMOSPHERE 2014; 113:62-70. [PMID: 25065791 DOI: 10.1016/j.chemosphere.2014.04.053] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 04/14/2014] [Accepted: 04/16/2014] [Indexed: 06/03/2023]
Abstract
Olive mill wastewaters (OMW) pose a serious environmental concern owing to high polyphenol content. Decolorization and degradation of phenolic compounds (PC) by Coriolopsis gallica was demonstrated in our laboratory as a potential biotreatment of OMW in solid and liquid media. High performance liquid chromatography coupled to electrospray time-of-flight mass spectrometry was used to analyze the evolution of the main phenolic compounds during the C. gallica biodegradation process. Amongst total the compounds characterized in methanolic extracts of OMW, 12 were unknown, 15 were from different polyphenolic families, and 27 were other non-phenolic compounds. The evolution of PC content during the degradation process indicated that, despite the complexity of the OMW phenolic fraction, C. gallica was able to grow on OMW-based media using PC as sources of carbon and energy, particularly acids, alcohols, lignans and flavones. Complete dephenolization of OMW was obtained.
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Affiliation(s)
- Dalel Daâssi
- Laboratory of Enzyme Engineering and Microbiology, Ecole Nationale d'Ingénieurs de Sfax, University of Sfax, Route de Soukra Km 4,5, BP 1173, 3038 Sfax, Tunisia
| | - Jesus Lozano-Sánchez
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, Italy; Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Fuentenueva s/n, E-18071 Granada, Spain; Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain
| | - Isabel Borrás-Linares
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Fuentenueva s/n, E-18071 Granada, Spain; Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain
| | - Lassaad Belbahri
- Laboratory of Soil Biology, University of Neuchatel, Rue Emile Argand 11, CH-2009 Neuchatel, Switzerland
| | - Steve Woodward
- University of Aberdeen, Institute of Biological and Environmental Science, Department of Plant and Soil Science, Cruickshank Building, Aberdeen AB24 3UU, Scotland, UK
| | - Héla Zouari-Mechichi
- Laboratory of Enzyme Engineering and Microbiology, Ecole Nationale d'Ingénieurs de Sfax, University of Sfax, Route de Soukra Km 4,5, BP 1173, 3038 Sfax, Tunisia
| | - Tahar Mechichi
- Laboratory of Enzyme Engineering and Microbiology, Ecole Nationale d'Ingénieurs de Sfax, University of Sfax, Route de Soukra Km 4,5, BP 1173, 3038 Sfax, Tunisia.
| | - Moncef Nasri
- Laboratory of Enzyme Engineering and Microbiology, Ecole Nationale d'Ingénieurs de Sfax, University of Sfax, Route de Soukra Km 4,5, BP 1173, 3038 Sfax, Tunisia
| | - Antonio Segura-Carretero
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Fuentenueva s/n, E-18071 Granada, Spain; Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain
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Miralles P, Chisvert A, Salvador A. Determination of hydroxytyrosol and tyrosol by liquid chromatography for the quality control of cosmetic products based on olive extracts. J Pharm Biomed Anal 2014; 102:157-61. [PMID: 25277667 DOI: 10.1016/j.jpba.2014.09.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 08/27/2014] [Accepted: 09/10/2014] [Indexed: 12/24/2022]
Abstract
An analytical method for the simultaneous determination of hydroxytyrosol and tyrosol in different types of olive extract raw materials and cosmetic cream samples has been developed. The determination was performed by liquid chromatography with UV spectrophotometric detection. Different chromatographic parameters, such as mobile phase pH and composition, oven temperature and different sample preparation variables were studied. The best chromatographic separation was obtained under the following conditions: C18 column set at 35°C and isocratic elution of a mixture ethanol: 1% acetic acid solution at pH 5 (5:95, v/v) as mobile phase pumped at 1 mL min(-1). The detection wavelength was set at 280 nm and the total run time required for the chromatographic analysis was 10 min, except for cosmetic cream samples where 20 min runtime was required (including a cleaning step). The method was satisfactorily applied to 23 samples including solid, water-soluble and fat-soluble olive extracts and cosmetic cream samples containing hydroxytyrosol and tyrosol. Good recoveries (95-107%) and repeatability (1.1-3.6%) were obtained, besides of limits of detection values below the μg mL(-1) level. These good analytical features, as well as its environmentally-friendly characteristics, make the presented method suitable to carry out both the control of the whole manufacture process of raw materials containing the target analytes and the quality control of the finished cosmetic products.
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Affiliation(s)
- Pablo Miralles
- Departamento de Química Analítica, Facultad de Química, Universitat de València, 46100 Burjassot, Valencia, Spain
| | - Alberto Chisvert
- Departamento de Química Analítica, Facultad de Química, Universitat de València, 46100 Burjassot, Valencia, Spain
| | - Amparo Salvador
- Departamento de Química Analítica, Facultad de Química, Universitat de València, 46100 Burjassot, Valencia, Spain.
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Biological Control ofBotrytisFruit Rot (Gray Mold) on Strawberry and Red Pepper Fruits by Olive Oil Mill Wastewater. BIOTECHNOL BIOTEC EQ 2014. [DOI: 10.2478/v10133-009-0017-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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133
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Barbera AC, Maucieri C, Ioppolo A, Milani M, Cavallaro V. Effects of olive mill wastewater physico-chemical treatments on polyphenol abatement and Italian ryegrass (Lolium multiflorum Lam.) germinability. WATER RESEARCH 2014; 52:275-281. [PMID: 24289894 DOI: 10.1016/j.watres.2013.11.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 09/10/2013] [Accepted: 11/04/2013] [Indexed: 06/02/2023]
Abstract
Direct spreading on agricultural lands may represent an environmentally friendly disposal method and a possible use of water and nutrients from olive mill wastewaters (OMWs). However, the agronomic use of OMWs is limited, among others by polyphenols, which exert phytotoxic effects. Activated charcoal (AC) has been recognized as a very effective agent for polyphenol abatement, as it enables an irreversible process of phenol adsorption. Addition of calcium hydroxide (Ca(OH)2) has also been described as a cheap and effective method in polyphenols abatement. However, the effects of Ca(OH)2 addition to OMW on seed germination are unclear. In this paper, the effects of AC and/or Ca(OH)2 on OMW polyphenols abatement, and Lolium multiflorum seed germination have been investigated. The highest polyphenols removal, approximately 95%, was observed when 80 g L(-1) of AC was added to OMWs (the maximum dose in this investigation). The addition of Ca(OH)2 not only improved the effectiveness of the AC treatment but also resulted in a significant rise in Lolium seed germination at the highest AC doses (60 and 80 g L(-1)). Considering the high salinity (7300 μS cm(-1)) of these wastewaters, low quantities of Ca(OH)2 may also exert a protective effect on soil structure counteracting the sodium-induced dispersion through the binding action of calcium cation on clays and organic matter.
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Affiliation(s)
- A C Barbera
- Department of Agriculture and Food Science - DISPA, University of Catania, Via Valdisavoia 5, 95123 Catania, Italy
| | - C Maucieri
- Department of Agriculture and Food Science - DISPA, University of Catania, Via Valdisavoia 5, 95123 Catania, Italy.
| | - A Ioppolo
- Department of Agriculture and Food Science - DISPA, University of Catania, Via Valdisavoia 5, 95123 Catania, Italy
| | - M Milani
- Department of Agri-food and Environmental System Management - DiGeSA, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
| | - V Cavallaro
- Consiglio Nazionale delle Ricerche-Istituto per la Valorizzazione del Legno e delle Specie Arboree (IVALSA), Via Gaifami 18, 95123 Catania, Italy
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Štajner D, Popović BM, Ćalić D, Štajner M. Comparative study of antioxidant status in androgenic embryos of Aesculus hippocastanum and Aesculus flava. ScientificWorldJournal 2014; 2014:767392. [PMID: 24672369 PMCID: PMC3932234 DOI: 10.1155/2014/767392] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Accepted: 11/07/2013] [Indexed: 11/17/2022] Open
Abstract
In vivo (leaves and seed embryos) and in vitro (androgenic embryos) antioxidant scavenging activity of Aesculus hippocastanum and Aesculus flava medical plants was examined. Here we report antioxidant enzyme activities of superoxide dismutase, catalase, guaiacol peroxidase and glutathione peroxidase, reduced glutathione quantity, flavonoids, soluble protein contents, quantities of malondialdehyde, and (•)OH radical presence in the investigated plant samples. Total antioxidant capacity of all the samples of A. hippocastanum and A. flava was determined using FRAP, DPPH, and NO(•) radical scavenger capacity. The leaves of A. flava collected from the botanical garden exhibited stronger antioxidant activity (higher activities of SOD, and higher quantities of GSH, TSH, TPC, and scavenging abilities of DPPH and NO(•), and higher FRAP values and lowest quantities of (•)OH and MDA) than in vitro obtained cultures. However, the leaves of A. flava showed higher antioxidant activity than the leaves of A. hippocastanum, and therefore they have a stronger tolerance of oxidative stress. Androgenic embryos of both species had low amount of antioxidants due to controlled in vitro environmental conditions (T, photoperiod, humidity, nutritive factors, and pathogen-free). Our results confirmed that we found optimal in vitro conditions for producing androgenic embryos of both Aesculus species. Also, we assume that horse chestnut androgenic embryos can be used as an alternative source for large-scale aescin production.
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Affiliation(s)
- Dubravka Štajner
- Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovića 8, 21 000 Novi Sad, Serbia
| | - Boris M. Popović
- Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovića 8, 21 000 Novi Sad, Serbia
| | - Dušica Ćalić
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković,” University of Belgrade, Despota Stefana Boulevard 142, 11000 Belgrade, Serbia
| | - Marijana Štajner
- Emergency Centre, Clinical Centre of Vojvodina, Hajduk Veljkova 1, 21000 Novi Sad, Serbia
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136
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Guida V, Niro E, Landi N, Chambery A, Parente A, Cantarella L, Cantarella M, Di Maro A. Immobilised peroxidases from Asparagus acutifolius L. seeds for olive mill waste water treatment. RSC Adv 2014. [DOI: 10.1039/c4ra11310a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AaP-1-4 peroxidase fromA. acutifoliusL. was immobilised on Eupergit® CM; Eup-AaP-1-4 was proved to be able to remove (poly)phenols in olive mill waste water; Eup-AaP-1-4 is an economic source for removal phenols from industrial processes.
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Affiliation(s)
- Vincenzo Guida
- Department of Environmental
- Biological and Pharmaceutical Sciences and Technologies
- Second University of Naples
- 81100 Caserta, Italy
| | - Elisa Niro
- Department of Environmental
- Biological and Pharmaceutical Sciences and Technologies
- Second University of Naples
- 81100 Caserta, Italy
| | - Nicola Landi
- Department of Environmental
- Biological and Pharmaceutical Sciences and Technologies
- Second University of Naples
- 81100 Caserta, Italy
| | - Angela Chambery
- Department of Environmental
- Biological and Pharmaceutical Sciences and Technologies
- Second University of Naples
- 81100 Caserta, Italy
| | - Augusto Parente
- Department of Environmental
- Biological and Pharmaceutical Sciences and Technologies
- Second University of Naples
- 81100 Caserta, Italy
| | - Laura Cantarella
- Department of Civil and Mechanical Engineering
- University of Cassino and Southern Lazio
- 03043 Cassino, Italy
| | - Maria Cantarella
- Department of Industrial and Information Engineering and Economics
- University of L'Aquila
- 67100 L'Aquila, Italy
| | - Antimo Di Maro
- Department of Environmental
- Biological and Pharmaceutical Sciences and Technologies
- Second University of Naples
- 81100 Caserta, Italy
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137
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Firlbeck D, Faulstich M, Urmann C, Azaizeh H, Tafesh A, Riepl H. Central composite design for optimal technology of concentrating vanillic acid using foam fractionation. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2013.08.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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138
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Measurement and correlation of the solubility of gallic acid in methanol plus water systems from (293.15 to 318.15) K. J Mol Liq 2013. [DOI: 10.1016/j.molliq.2013.07.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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139
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Kalogerakis N, Politi M, Foteinis S, Chatzisymeon E, Mantzavinos D. Recovery of antioxidants from olive mill wastewaters: a viable solution that promotes their overall sustainable management. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2013; 128:749-758. [PMID: 23851320 DOI: 10.1016/j.jenvman.2013.06.027] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 06/10/2013] [Accepted: 06/20/2013] [Indexed: 06/02/2023]
Abstract
Olive mill wastewaters (OMW) are rich in water-soluble polyphenolic compounds that show remarkable antioxidant properties. In this work, the recovery yield of compounds, such as hydroxytyrosol and tyrosol, as well as total phenols (TPh) from real OMW was investigated. Antioxidants were recovered by means of liquid-liquid solvent extraction. For this purpose, a laboratory-scale pilot unit was established and the effect of various organic solvents, namely ethyl acetate, diethyl ether and a mixture of chloroform/isopropyl alcohol, on process efficiency was investigated. It was found that the performance of the three extraction systems decreased in the order: ethyl acetate > chloroform/isopropanol > diethyl ether, in terms of their antioxidant recovery yield. It was estimated that treatment of 1 m(3) OMW with ethyl acetate could provide 0.247 kg hydroxytyrosol, 0.062 kg tyrosol and 3.44 kg of TPh. Furthermore, the environmental footprint of the whole liquid-liquid extraction system was estimated by means of the life cycle assessment (LCA) methodology to provide the best available and most sustainable extraction technique. From an environmental perspective, it was found that ethyl acetate and diethyl ether had similar environmental impacts. Specifically, for the production of 1 g hydroxytyrosol, tyrosol or TPh, 13.3, 53.1 or 0.949 kg CO2 equivalent would be released to the atmosphere, respectively. On the other hand, the chloroform/isopropyl alcohol mixture had detrimental effects onto ecosystems, human health and fossil fuels resources. In total, ethyl acetate yields low environmental impacts and high antioxidant recovery yield and thus it can be considered as the best solution, both from the environmental and technical point of view. Three alternative scenarios to improve the recovery performance and boost the sustainability of the ethyl acetate extraction system were also investigated and their total environmental impacts were estimated. It was found that with small process modifications the environmental impacts could be reduced by 29%, thus achieving a more sustainable antioxidants recovery process.
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Affiliation(s)
- Nicolas Kalogerakis
- Department of Environmental Engineering, Technical University of Crete, Polytechneioupolis, GR-73100 Chania, Greece
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140
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141
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Dermeche S, Nadour M, Larroche C, Moulti-Mati F, Michaud P. Olive mill wastes: Biochemical characterizations and valorization strategies. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.07.010] [Citation(s) in RCA: 369] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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142
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Factorial design optimisation of hydrocaffeic acid removal from an aqueous matrix by the use of a crude potato polyphenol oxidase. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2013. [DOI: 10.1016/j.bcab.2013.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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143
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Alu'datt MH, Rababah T, Ereifej K, Alli I. Distribution, antioxidant and characterisation of phenolic compounds in soybeans, flaxseed and olives. Food Chem 2013; 139:93-9. [PMID: 23561083 DOI: 10.1016/j.foodchem.2012.12.061] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Revised: 11/25/2012] [Accepted: 12/21/2012] [Indexed: 11/23/2022]
Abstract
The distribution of free and bound phenolic compounds present in soybean, flaxseed and olive were investigated. The phenolic compounds were fractionated on the basis on their solubility characteristics in water, alcohol, dilute base and dilute acid. Reversed phase high pressure liquid chromatography (RP-HPLC) and mass spectrometry (MS) were used for identification of individual components of phenolic compounds. Antioxidant activity (AA%) of free and bound phenolic compounds was measured using the linoleic acid/β-carotene assay. The water-soluble phenolic compound fractions represented 68-81%, 50-72% and 46-56% of the total phenolic compounds measured in full-fat soybean, olive and flaxseed, respectively. Methanolic extraction of free phenolic compounds without heat, solubilised 21-56%, 42-62% and 34-51% of the total phenolic compounds measured in soybean, olive and flaxseed, respectively; methanol extraction of free phenolic compounds with heat solubilised a further 24-34%, 31-37% and 36-37% of phenolic compounds from soybean, olive and flaxseed, respectively. Further dilute alkali and dilute acid solubilised the remaining 10-40%, 1-21% and 12-29% of the total phenolic compounds from soybean, olive and flaxseed, respectively. Results indicated that the full-fat meals of soybean, flaxseed and olive showed higher antioxidant activity compared to defatted meals. RP-HPLC and LC-MS/MS profil1 for soybean, flaxseed and olive indicate two classes of phenolic compounds designated as free and bound phenolic compounds.
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Affiliation(s)
- Muhammad H Alu'datt
- Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan.
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144
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Pérez-Bonilla M, Salido S, Sánchez A, van Beek TA, Altarejos J. Effect of Extraction Conditions on the Antioxidant Activity of Olive Wood Extracts. INTERNATIONAL JOURNAL OF FOOD SCIENCE 2013; 2013:719593. [PMID: 26904608 PMCID: PMC4745524 DOI: 10.1155/2013/719593] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Accepted: 03/28/2013] [Indexed: 11/28/2022]
Abstract
An investigation to optimize the extraction yield and the radical scavenging activity from the agricultural by-product olive tree wood (Olea europaea L., cultivar Picual) using six different extraction protocols was carried out. Four olive wood samples from different geographical origin, and harvesting time have been used for comparison purposes. Among the fifty olive wood extracts obtained in this study, the most active ones were those prepared with ethyl acetate, either through direct extraction or by successive liquid-liquid partitioning procedures, the main components being the secoiridoids oleuropein and ligustroside. An acid hydrolysis pretreatment of olive wood samples before extractions did not improve the results. In the course of this study, two compounds were isolated from the ethanolic extracts of olive wood collected during the olives' harvesting season and identified as (7''R)-7''-ethoxyoleuropein (1) and (7''S)-7''-ethoxyoleuropein (2).
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Affiliation(s)
- Mercedes Pérez-Bonilla
- Departamento de Química Inorgánica y Orgánica, Facultad de Ciencias Experimentales, Universidad de Jaén, Campus de Excelencia Internacional Agroalimentario, ceiA3, 23071 Jaén, Spain
| | - Sofía Salido
- Departamento de Química Inorgánica y Orgánica, Facultad de Ciencias Experimentales, Universidad de Jaén, Campus de Excelencia Internacional Agroalimentario, ceiA3, 23071 Jaén, Spain
| | - Adolfo Sánchez
- Departamento de Química Inorgánica y Orgánica, Facultad de Ciencias Experimentales, Universidad de Jaén, Campus de Excelencia Internacional Agroalimentario, ceiA3, 23071 Jaén, Spain
| | - Teris A. van Beek
- Laboratory of Organic Chemistry, Natural Products Chemistry Group, Wageningen University, Dreijenplein 8, 6703 HB Wageningen, The Netherlands
| | - Joaquín Altarejos
- Departamento de Química Inorgánica y Orgánica, Facultad de Ciencias Experimentales, Universidad de Jaén, Campus de Excelencia Internacional Agroalimentario, ceiA3, 23071 Jaén, Spain
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145
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Cassano A, Conidi C, Giorno L, Drioli E. Fractionation of olive mill wastewaters by membrane separation techniques. JOURNAL OF HAZARDOUS MATERIALS 2013; 248-249:185-193. [PMID: 23376489 DOI: 10.1016/j.jhazmat.2013.01.006] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 12/17/2012] [Accepted: 01/04/2013] [Indexed: 06/01/2023]
Abstract
This study aims to evaluate the potential of an integrated membrane system in the treatment of olive mill wastewaters (OMWs) to produce a purified fraction enriched in low molecular weight polyphenols, a concentrated fraction of organic substances and a water stream which can be reused in the extractive process of olive oil. In particular, a sequence of two ultrafiltration (UF) processes followed by a final nanofiltration (NF) step was investigated on laboratory scale operating in selected process parameters. The produced fractions were analyzed for their total content of polyphenols, total antioxidant activity (TAA), free low molecular weight polyphenols and total organic carbon (TOC). The performance of selected membranes in terms of productivity, fouling index and selectivity toward compounds of interest was also evaluated and discussed. An integrated membrane process was proposed to achieve high levels of purification of OMWs and a water fraction which can be discharged in aquatic systems or to be reused in the olive oil extraction process.
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Affiliation(s)
- Alfredo Cassano
- Institute on Membrane Technology, ITM-CNR, Via P. Bucci, 17/C I-87036 Rende (CS), Italy.
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146
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Galanakis C, Goulas V, Tsakona S, Manganaris G, Gekas V. A Knowledge Base for The Recovery of Natural Phenols with Different Solvents. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2013. [DOI: 10.1080/10942912.2010.522750] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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147
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Brouk M, Fishman A. Improving process conditions of hydroxytyrosol synthesis by toluene-4-monooxygenase. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcatb.2012.05.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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148
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Casaburi I, Puoci F, Chimento A, Sirianni R, Ruggiero C, Avena P, Pezzi V. Potential of olive oil phenols as chemopreventive and therapeutic agents against cancer: A review of in vitro studies. Mol Nutr Food Res 2012. [DOI: 10.1002/mnfr.201200503] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ivan Casaburi
- Department of Pharmaco-Biology and Pharmaceutical Sciences; University of Calabria; Italy
| | - Francesco Puoci
- Department of Pharmaco-Biology and Pharmaceutical Sciences; University of Calabria; Italy
| | - Adele Chimento
- Department of Pharmaco-Biology and Pharmaceutical Sciences; University of Calabria; Italy
| | - Rosa Sirianni
- Department of Pharmaco-Biology and Pharmaceutical Sciences; University of Calabria; Italy
| | - Carmen Ruggiero
- Department of Pharmaco-Biology and Pharmaceutical Sciences; University of Calabria; Italy
| | - Paola Avena
- Department of Pharmaco-Biology and Pharmaceutical Sciences; University of Calabria; Italy
| | - Vincenzo Pezzi
- Department of Pharmaco-Biology and Pharmaceutical Sciences; University of Calabria; Italy
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149
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Zwane RE, Parker A, Kudanga T, Davids LM, Burton SG. Novel, biocatalytically produced hydroxytyrosol dimer protects against ultraviolet-induced cell death in human immortalized keratinocytes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:11509-17. [PMID: 23072558 DOI: 10.1021/jf300883h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Compounds derived from botanicals, such as olive trees, have been shown to possess various qualities that make them function as ideal antioxidants and, in doing so, protect them against the damaging effect of ultraviolet (UV)-derived oxidative stress. The aim of this study was to biocatalytically synthesize a dimeric product (compound II) from a known botanical, 3-hydroxytyrosol, and test it for its antioxidant ability using a human immortalized keratinocyte cell line (HaCaT). 2,2-Diphenyl-picryhydrazyl (DPPH) antioxidant assays showed 33 and 86.7% radical scavenging activity for 3-hydroxytyrosol and its dimer, respectively. The ferric-reducing antioxidant power (FRAP) assay corroborated this by showing a 3-fold higher antioxidant activity for the dimer than 3-hydroxytyrosol. Western blot analyses, showing cells exposed to 500 μM of the dimeric product when ultraviolet A (UVA)-irradiated, increased the anti-apoptotic protein Bcl-2 expression by 16% and reduced the pro-apoptotic protein Bax by 87.5%. Collectively, the data show that the dimeric product of 3-hydroxytyrosol is a more effective antioxidant and could be considered for use in skin-care products, health, and nutraceuticals.
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Affiliation(s)
- Refiloe E Zwane
- Biocatalysis and Technical Biology Group, Cape Peninsula University of Technology, Bellville Campus, Symphony Way, Post Office Box 1906, Bellville, 7535 Cape Town, South Africa
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150
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Galanakis CM. Recovery of high added-value components from food wastes: Conventional, emerging technologies and commercialized applications. Trends Food Sci Technol 2012. [DOI: 10.1016/j.tifs.2012.03.003] [Citation(s) in RCA: 507] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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